Property talk:P25

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YouTube channel ID
ID of the YouTube channel of a person or organisation (not to be confused with the name of the channel) The ID can also be used for music.youtube.com IDs.

Represents	YouTube channel (Q2536)
Associated item	YouTube (Q2527)
Has quality	case sensitive (Q2493)
Data type	External identifier
Domain	human (Q4), organization (Q12), group of humans (Q13), database (Q605), work (Q568), YouTube channel (Q2536) or television channel (Q2534)
Allowed values	UC[-_0-9A-Za-z]{21}[AQgw] (base64 hashed/salted serial identifier; different from human-readable username)
Usage notes	The human-readable username can be added as a "website username" (P68) qualifier, and the title of the channel can be provided with the "named as" (P82) qualifier.
Source	https://youtube.com https://www.youtube.com/gaming/games
Formatter URL	https://www.youtube.com/channel/$1 https://music.youtube.com/channel/$1 https://www.youtube.com/feeds/videos.xml?channel_id=$1
Related to country	United States of America (Q671) (See 10 others)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to Gratispaideia Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims <usage history (total)> <usage history (main statement)> <Map of people by place values:> place of birth educated at work location residence place of death place of burial <January 1st dates> <People with date of birth on January 1> <People with date of death on January 1> <People with both dates on January 1> Map Random list
Proposal discussion	[not applicable Proposal discussion]
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Format “UC[-_0-9A-Za-z]{21}[AQgw]”: value must be formatted using this pattern (PCRE syntax). List of this constraint violations: Database reports/Constraint violations/P25#Format, hourly updated report, SPARQL

Conflicts with “website account on (P390): YouTube (Q2527), YouTube Premium (Q2539)”: this property must not be used with the listed properties and values. List of this constraint violations: Database reports/Constraint violations/P25#Conflicts with, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P25#Unique value, SPARQL (every item), SPARQL (by value)

Type “human (Q4), organization (Q12), group of humans (Q13), database (Q605), work (Q568), YouTube channel (Q2536), television channel (Q2534)”: element must contain property “instance of (P3)” with classes “human (Q4), organization (Q12), group of humans (Q13), database (Q605), work (Q568), YouTube channel (Q2536), television channel (Q2534)” or their subclasses (defined using NLA Trove ID (P279)). Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P25#type, SPARQL

Qualifiers “website username (P68), language of work or name (P35), start time (P174), end time (P175), has quality (P48), number of subscribers (P10), number of works (P211), point in time (P80), subject named as (P82), object has role (P154), sourcing circumstances (P160), earliest date (P173), latest date (P172), social media followers (P91), retrieved (P200), archive URL (P191), archive date (P205), reason for deprecated rank (P344), reason for preferred rank (P345), URL (P49)”: this property should be used only with the listed qualifiers. Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P25#Allowed qualifiers, SPARQL

Scope is as main value (Q793), as qualifier (Q792), as reference (Q780): the property must be used by specified way only Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P25#scope, SPARQL

Allowed entity types are Wikibase item datatype (Q799): the property may only be used on a certain entity type Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P25#allowed entity types